2686b2b02d
This makes it easier to add checks in handlers, which should improve security over time. I think this approach is more readable and testable than calling Client#disconnect straight up, while it also decentralizes the handling.
61 lines
2.6 KiB
Java
61 lines
2.6 KiB
Java
/*
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This file is part of the OdinMS Maple Story Server
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Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
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Matthias Butz <matze@odinms.de>
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Jan Christian Meyer <vimes@odinms.de>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation version 3 as published by
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the Free Software Foundation. You may not use, modify or distribute
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this program under any other version of the GNU Affero General Public
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License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.server.channel.handlers;
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import client.Client;
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import client.autoban.AutobanFactory;
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import constants.id.ItemId;
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import constants.id.NpcId;
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import constants.inventory.ItemConstants;
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import net.AbstractPacketHandler;
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import net.netty.GameViolationException;
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import net.packet.InPacket;
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import scripting.npc.NPCScriptManager;
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/**
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* @author Generic
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*/
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public final class RemoteGachaponHandler extends AbstractPacketHandler {
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@Override
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public final void handlePacket(InPacket p, Client c) {
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int ticket = p.readInt();
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int gacha = p.readInt();
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if (ticket != ItemId.REMOTE_GACHAPON_TICKET) {
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AutobanFactory.GENERAL.alert(c.getPlayer(), " Tried to use RemoteGachaponHandler with item id: " + ticket);
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throw new GameViolationException("Use Remote gachapon without owning the item");
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} else if (gacha < 0 || gacha > 11) {
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AutobanFactory.GENERAL.alert(c.getPlayer(), " Tried to use RemoteGachaponHandler with mode: " + gacha);
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throw new GameViolationException("Use Remote gachapon with invalid mode");
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} else if (c.getPlayer().getInventory(ItemConstants.getInventoryType(ticket)).countById(ticket) < 1) {
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AutobanFactory.GENERAL.alert(c.getPlayer(), " Tried to use RemoteGachaponHandler without a ticket.");
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throw new GameViolationException("Use Remote gachapon without a ticket");
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}
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int npcId = NpcId.GACHAPON_HENESYS;
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if (gacha != 8 && gacha != 9) {
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npcId += gacha;
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} else {
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npcId = gacha == 8 ? NpcId.GACHAPON_NLC : NpcId.GACHAPON_NAUTILUS;
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}
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NPCScriptManager.getInstance().start(c, npcId, "gachaponRemote");
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}
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}
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